RT_SECURE_NO_WARNINGS 1

#include <iostream>
#include <string>

using namespace std;

int main()
{
	int arr[] = {1,2,3,4};
	string str="";
	str += arr[3];
	cout << arr[1] << endl;
	cout << str << "---11" << endl;
	str += to_string(arr[1]);
	cout << arr[1] << endl;
	cout << str << "---11" << endl;
	return 0;
}
